[Matt329]

Okay so this is a stupid question, but when It comes to some stuff I am a moron.

I'm trying to buy a new set of rims for my Mustang, but I don't know the specifications so I can order them.

I have 17" tires, so I'm guessing that makes my wheels 17s?

now I need to find the width.

So how do I figure out if It's a

17 X 7

17 X 8

ect?

I looked inside the wheel and all I saw was 7GM stamped on the inside.

Thanks for your help

[noble steed]

What tire size are you running? You have to measure the rim width with the tire off.

[jasenabw]

or just list the tire size you are running. 245 30 17 is about the smallest tire you can put on a 17x8 and 255 30 is about the smallest you can put on a 17x9. also, what do your rims look like? eww why do you have gm rims on a mustang? though i think that gm 7 might denote the width. we really do need the tire size to know though.